Sustainability in architecture finds more and more meaning in creative activity of modern architects and town-planners, engineers and technologists who are engaged in different fields of design, construction, and production of advanced materials, structures, and technologies. A new definition of sustainable architecture is suggested in this paper as well as the approaches to its formation: harmonization of social, economic, environmental, and spatial factors of settlement development; detection of the optimum combination of ‘stability’ and ‘variability’ within the framework of the object design program; natural conformity and biomimetics; adaptability to challenges and risks of climatic condition and man-made origins; mathematical and three-dimensional modeling of building depending on its life cycle.

The explanatory content of approaches makes possible to use them in research, experimental design, and education activities. Approaches to a formation of the development strategy of sustainable architecture are shown in this paper.